EP0080583A1 - Dispositif pour préchauffer et/ou plastifier des matières pulvérulentes et thermoplastiques - Google Patents

Dispositif pour préchauffer et/ou plastifier des matières pulvérulentes et thermoplastiques Download PDF

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Publication number
EP0080583A1
EP0080583A1 EP82109248A EP82109248A EP0080583A1 EP 0080583 A1 EP0080583 A1 EP 0080583A1 EP 82109248 A EP82109248 A EP 82109248A EP 82109248 A EP82109248 A EP 82109248A EP 0080583 A1 EP0080583 A1 EP 0080583A1
Authority
EP
European Patent Office
Prior art keywords
screw
planetary roller
roller extruder
filling screw
filling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82109248A
Other languages
German (de)
English (en)
Inventor
Harald Rust
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Battenfeld Extrusionstechnik GmbH
Original Assignee
Battenfeld Extrusionstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Battenfeld Extrusionstechnik GmbH filed Critical Battenfeld Extrusionstechnik GmbH
Publication of EP0080583A1 publication Critical patent/EP0080583A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • B29C48/44—Planetary screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers

Definitions

  • the invention relates to a device for preheating and / or plasticizing pulverulent thermoplastic, in particular PVC powder or polyolefins, such as PS, PP or PE, with additives, consisting of a material intake funnel with a mixer and agitator and a metering screw, and also of a planetary roller extruder with an upstream filling screw.
  • pulverulent thermoplastic in particular PVC powder or polyolefins, such as PS, PP or PE
  • additives consisting of a material intake funnel with a mixer and agitator and a metering screw, and also of a planetary roller extruder with an upstream filling screw.
  • a device for preheating and / or plasticizing PVC powder or polyolefins such as PS, PP or PE provided with additives, such as stabilizers, pigments or the like, a device is known which consists of a funnel to be processed, in the form of a powdery material, in which a mixer and agitator connected to a drive is arranged.
  • a so-called stuffing screw is provided with a vertical axis, which is connected to the drive of the mixer and agitator.
  • the stuffing screw has the task of dispensing the material in the hopper in a metered manner to a filling screw.
  • the filling screw is arranged with a horizontal axis below the stuffing or dosing screw and in turn feeds a planetary roller extruder, which is provided coaxially with the filling screw. While the walls surrounding the dosing screw and the filling screw are cooled, so that in this area only pure conveyance of the powdery material takes place, the planetary roller extruder is heated, so that here the powdery material is at least preheated, but mostly preplasticized or plasticized.
  • the filling screw and the planetary roller extruder are assigned a special drive that is separate from the mixer and agitator drive.
  • the material usually in agglomerate form, passes from the planetary roller extruder via a deflection and ventilation chamber to a screw extruder in which the material is plasticized or completely plasticized.
  • the material leaving the screw extruder is either granulated or processed directly into molded parts.
  • the invention is therefore based on the object of designing a device of the type described in the introduction in such a way that the wear on the planetary roller extruder is reduced and the structure of the device is simplified. At the same time, the space requirement for setting up the device is to be reduced.
  • the filling screw and the planetary roller extruder are arranged axially below the receiving funnel and connected to the mixing and agitator drive.
  • This design ensures that the filling screw is filled evenly by the force of gravity of the material and that no asymmetries occur.
  • this ensures a uniform loading of the planetary roller extruder, so that the same can be operated without overstressing one-sided radial forces and achieves a long service life. Unilateral wear no longer occurs.
  • the filling screw is arranged directly in the outlet of the receiving funnel, so that it simultaneously forms the dosing or stuffing screw. A special dosing screw is then no longer necessary.
  • the feed screw can be assigned a metering slide, which is arranged either above or below the feed screw.
  • the filling screw is designed to be symmetrically multi-start, that is to say at least two-start, even if the drawing shows only one-start screw to simplify the illustration.
  • the planetary roller extruder, the filling screw and the hopper with the mixer and agitator drive are attached to an arm that can be pivoted about a vertical axis. This simplifies cleaning and repair of the device and also gives the possibility of first flowing the material emerging from the planetary roller extruder into an adjacent container until, for example, the heating is complete and perfectly homogeneous material emerges.
  • the previously required frame with the chassis can be omitted.
  • a device for heating and / or pre-plastifying powdery, thermoplastic material is shown in a simplified manner, which has a funnel 1 for receiving the material to be processed.
  • the material for example PVC powder with additives, is filled into the funnel 1 via a metal separator 2.
  • a shaft 4 In the hopper 1 there is only an indicated mixing and stirring tool 3, which is received by a shaft 4.
  • the shaft 4 is connected to a gear 5 with a drive motor 6.
  • the lower region of the funnel 1 merges into a cylindrical outlet 7 through which the shaft 4 also extends. In this area, the shaft 4 receives a two-speed filling screw 8, which is thus also driven by the motor 6 with gear 5.
  • a metering slide 9 is installed, which is, for example, symmetrical, two-sided.
  • the amount of material entering the filling screw 8 can be metered via this metering slide 9.
  • the jacket of the outlet 7 can be equipped with a cooling, known per se, not shown in detail.
  • planetary roller extruder 10 At the free end of the outlet 7, there is an indicated planetary roller extruder 10, which is also driven by the shaft 4.
  • the central axis of this planetary roller extruder 10 also extends perpendicularly and coaxially to the hopper 1.
  • the same can be provided with an electric heater.
  • Both the hopper 1 with the outlet 7 and the filling screw 8 and the planetary roller extruder 10 are carried by an arm 11 which is pivotally held on a fixed column 12. As a result, these parts can be pivoted away by a screw extruder 13, not shown, which connects with a degassing chamber 14 under the planetary roller extruder 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP82109248A 1981-11-30 1982-10-07 Dispositif pour préchauffer et/ou plastifier des matières pulvérulentes et thermoplastiques Withdrawn EP0080583A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3147417 1981-11-30
DE19813147417 DE3147417A1 (de) 1981-11-30 1981-11-30 Vorrichtung zum vorwaermen und/oder plastifizieren von pulverfoermigen thermoplastischem kunststoff

Publications (1)

Publication Number Publication Date
EP0080583A1 true EP0080583A1 (fr) 1983-06-08

Family

ID=6147549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109248A Withdrawn EP0080583A1 (fr) 1981-11-30 1982-10-07 Dispositif pour préchauffer et/ou plastifier des matières pulvérulentes et thermoplastiques

Country Status (2)

Country Link
EP (1) EP0080583A1 (fr)
DE (1) DE3147417A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611250A1 (fr) * 1993-02-05 1994-08-17 ICMA SAN GIORGIO S.p.A. Procédé d'extrusion et installation
EP1297888A3 (fr) * 1995-12-05 2005-07-20 Fuji Photo Film Co., Ltd. Appareil pour la préparation d'une solution d'un polymère
AT502815B1 (de) * 2005-06-21 2008-02-15 Cincinnati Extrusion Gmbh Verfahren und vorrichtung zum beschicken von extrudern
DE102014003760A1 (de) * 2014-03-18 2015-09-24 recyplast GmbH Vorrichtung und Verfahren zum Beschicken von Schneckenförderem mit rieselfähigem Schüttgut
CN109383857A (zh) * 2018-12-04 2019-02-26 常州托尼帕克称重系统有限公司 一种中心脱气的垂直螺旋进料机构
CN112122232A (zh) * 2020-09-11 2020-12-25 侯彬翔 一种铝合金回收清洗设备
CN112659517A (zh) * 2020-12-18 2021-04-16 台州耘智科技有限公司 一种增强型橡胶挤出喂料装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679807B2 (fr) * 1951-01-28 1973-09-27 Buss Ag, Basel (Schweiz)
DE2924318A1 (de) * 1979-06-15 1980-12-18 Berstorff Gmbh Masch Hermann Zweistufige schneckenstrangpressvorrichtung fuer pulverfoermige kunststoffmassen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679807B2 (fr) * 1951-01-28 1973-09-27 Buss Ag, Basel (Schweiz)
DE2924318A1 (de) * 1979-06-15 1980-12-18 Berstorff Gmbh Masch Hermann Zweistufige schneckenstrangpressvorrichtung fuer pulverfoermige kunststoffmassen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0611250A1 (fr) * 1993-02-05 1994-08-17 ICMA SAN GIORGIO S.p.A. Procédé d'extrusion et installation
EP1297888A3 (fr) * 1995-12-05 2005-07-20 Fuji Photo Film Co., Ltd. Appareil pour la préparation d'une solution d'un polymère
AT502815B1 (de) * 2005-06-21 2008-02-15 Cincinnati Extrusion Gmbh Verfahren und vorrichtung zum beschicken von extrudern
DE102006024724B4 (de) * 2005-06-21 2016-08-18 Battenfeld-Cincinnati Austria Gmbh Verfahren und Vorrichtung zum Beschicken von Extrudern
DE102014003760A1 (de) * 2014-03-18 2015-09-24 recyplast GmbH Vorrichtung und Verfahren zum Beschicken von Schneckenförderem mit rieselfähigem Schüttgut
CN109383857A (zh) * 2018-12-04 2019-02-26 常州托尼帕克称重系统有限公司 一种中心脱气的垂直螺旋进料机构
CN109383857B (zh) * 2018-12-04 2024-04-12 常州托尼帕克称重系统有限公司 一种中心脱气的垂直螺旋进料机构
CN112122232A (zh) * 2020-09-11 2020-12-25 侯彬翔 一种铝合金回收清洗设备
CN112122232B (zh) * 2020-09-11 2021-11-30 江苏宏元达光伏新材料有限公司 一种铝合金回收清洗设备
CN112659517A (zh) * 2020-12-18 2021-04-16 台州耘智科技有限公司 一种增强型橡胶挤出喂料装置

Also Published As

Publication number Publication date
DE3147417A1 (de) 1983-06-09

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19821007

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BATTENFELD EXTRUSIONSTECHNIK GMBH

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840710

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RUST, HARALD